Pressure washing is an effective way to clean your house’s exterior, removing dirt, grime, mold, and mildew. Whether you’re preparing your home for painting, or simply wanting to enhance its curb appeal, pressure washing can make a significant difference. In this guide, we will cover everything you need to know about pressure washing your house, from preparation to execution and safety tips. By following these steps, you can achieve a clean, refreshed look for your home.
See Also: 4 Reasons to Wash Your Brick House
Understanding Pressure Washing
Pressure washing involves using a high-pressure water spray to remove dirt, mold, mildew, and other contaminants from surfaces. The equipment used for this task, known as a pressure washer, comes in various sizes and power levels.
Types of Pressure Washers
There are two main types of pressure washers: electric and gas-powered.
- Electric Pressure Washers: These are typically smaller and less powerful, suitable for light to moderate cleaning tasks. They are quieter and require less maintenance.
- Gas-Powered Pressure Washers: These are more powerful and ideal for heavy-duty cleaning tasks. They are more portable but require regular maintenance and are louder.
Pressure Washer Specifications
When choosing a pressure washer, consider the following specifications:
- PSI (Pounds per Square Inch): This measures the pressure of the water stream. Higher PSI means more powerful cleaning.
- GPM (Gallons per Minute): This measures the flow rate of the water. Higher GPM means more water is used, leading to faster cleaning.
Preparing for Pressure Washing
Before you begin pressure washing your house, proper preparation is crucial to ensure safety and effectiveness.
Safety Precautions
Pressure washers can be dangerous if not used correctly. Follow these safety tips:
- Wear Protective Gear: Use safety glasses, gloves, and sturdy footwear to protect yourself from flying debris and accidental sprays.
- Read the Manual: Familiarize yourself with the pressure washer’s operation manual, paying attention to safety instructions.
- Keep Children and Pets Away: Ensure children and pets are kept at a safe distance during the cleaning process.
Inspecting the Exterior
Inspect your house’s exterior to identify areas that need special attention or repair.
- Check for Damages: Look for loose or damaged siding, cracks, and areas with mold or mildew. Repair any damages before pressure washing to avoid water intrusion.
- Cover Vulnerable Areas: Cover light fixtures, electrical outlets, and vents with plastic sheeting or painter’s tape to protect them from water.
Gathering Supplies
Gather all necessary supplies before you start:
- Pressure Washer: Ensure it’s in good working condition with a full tank of gas (for gas-powered) or a stable power source (for electric).
- Nozzles and Attachments: Different nozzles provide different spray patterns and pressures. Select the appropriate ones for your task.
- Cleaning Solutions: Depending on the surface and type of dirt, you may need specific cleaning solutions. Ensure they are safe for pressure washers and the surfaces you are cleaning.
- Brushes and Scrubbers: For stubborn stains, you may need additional brushes or scrubbers.
Setting Up the Pressure Washer
Set up your pressure washer in a suitable location.
- Position the Washer: Place the pressure washer on a flat, stable surface near a water source. Ensure the hose can reach all areas you need to clean.
- Connect Water Supply: Attach the garden hose to the pressure washer’s water inlet. Turn on the water supply and check for leaks.
- Assemble the Wand and Nozzle: Attach the wand and select the appropriate nozzle for your task.
Pressure Washing Techniques
Proper techniques are essential for effective and safe pressure washing.
Selecting the Right Nozzle
Nozzles are color-coded based on their spray angle and pressure.
- Red Nozzle (0 Degrees): Produces a concentrated, high-pressure stream. Use with caution for tough stains on hard surfaces.
- Yellow Nozzle (15 Degrees): Offers a narrow, high-pressure spray. Suitable for concrete and brick surfaces.
- Green Nozzle (25 Degrees): Provides a medium-pressure spray. Ideal for general cleaning tasks.
- White Nozzle (40 Degrees): Creates a wide, low-pressure spray. Best for delicate surfaces like siding and windows.
- Black Nozzle (65 Degrees): Also known as the soap nozzle. Used for applying cleaning solutions.
Testing the Pressure
Before you start, test the pressure on a small, inconspicuous area.
- Adjust Pressure Settings: Start with the lowest pressure setting and gradually increase if needed.
- Test Different Nozzles: Try different nozzles to find the one that provides the desired cleaning effect without damaging the surface.
Applying Cleaning Solutions
For heavily soiled areas, use a suitable cleaning solution.
- Pre-Wash the Surface: Wet the surface with water before applying the cleaning solution. This helps the solution spread evenly.
- Apply the Solution: Use the black nozzle (soap nozzle) to apply the cleaning solution. Allow it to sit for a few minutes to loosen dirt and grime.
- Scrub Stubborn Stains: Use a brush or scrubber for areas with stubborn stains.
Pressure Washing the House
Now you are ready to start pressure washing.
- Work in Sections: Divide your house into manageable sections. This helps you focus on one area at a time and ensures thorough cleaning.
- Maintain a Consistent Distance: Hold the wand at a consistent distance from the surface, typically 6-12 inches. This prevents damage and ensures even cleaning.
- Use Smooth, Overlapping Strokes: Move the wand in smooth, overlapping strokes. This prevents streaking and ensures complete coverage.
- Rinse Thoroughly: After cleaning each section, rinse it thoroughly with clean water to remove any remaining cleaning solution and loosened dirt.
Cleaning Different Surfaces
Different surfaces require different approaches and techniques.
Cleaning Siding
Siding is one of the most common surfaces to be pressure washed.
- Vinyl Siding: Use a medium-pressure setting and a wide nozzle (white or green). Be cautious around seams and edges.
- Wood Siding: Use a low-pressure setting and a wide nozzle. Hold the wand at an angle to avoid forcing water under the siding.
- Brick and Stone Siding: Use a high-pressure setting and a narrow nozzle (yellow). Be careful around mortar joints to prevent damage.
Cleaning Decks and Patios
Decks and patios can accumulate a lot of dirt and grime.
- Wooden Decks: Use a low-pressure setting and a wide nozzle. Clean along the grain of the wood to avoid splintering.
- Composite Decks: Use a medium-pressure setting and a wide nozzle. Follow the manufacturer’s recommendations for cleaning solutions.
- Concrete Patios: Use a high-pressure setting and a narrow nozzle. Move the wand in smooth, overlapping strokes.
Cleaning Windows and Doors
Windows and doors are delicate and require careful handling.
- Windows: Use a low-pressure setting and a wide nozzle. Avoid direct pressure on the glass to prevent breakage.
- Doors: Use a medium-pressure setting and a wide nozzle. Be cautious around seals and edges.
Cleaning Roofs and Gutters
Roofs and gutters are challenging but important to clean.
- Roofs: Use a low-pressure setting and a wide nozzle. Avoid direct pressure on shingles to prevent damage.
- Gutters: Use a medium-pressure setting and a narrow nozzle. Clear debris first, then rinse thoroughly.
Post-Pressure Washing Care
After pressure washing, there are a few steps to ensure everything is in order.
Inspecting for Damage
After cleaning, inspect the exterior for any damage.
- Check for Loose Siding: Ensure all siding is secure and in place.
- Inspect Windows and Doors: Check seals and edges for any signs of damage or water intrusion.
Cleaning Up
Proper cleanup ensures your equipment stays in good condition.
- Drain and Store the Pressure Washer: Drain any remaining water from the pressure washer and hoses. Store the equipment in a dry, safe place.
- Dispose of Cleaning Solutions: Dispose of any remaining cleaning solutions according to local regulations.
Maintenance Tips
Regular maintenance keeps your house looking great and prolongs the life of your pressure washer.
- Regular Inspections: Inspect your house’s exterior regularly for signs of dirt, mold, and mildew. Address issues promptly.
- Seasonal Cleaning: Pressure wash your house at least once a year, or more often in areas with heavy rainfall or high humidity.
- Equipment Maintenance: Follow the manufacturer’s recommendations for maintaining your pressure washer.
Conclusion
Pressure washing your house can greatly enhance its appearance and prolong its lifespan. By understanding the equipment, preparing properly, and using the right techniques, you can achieve excellent results safely and efficiently. Remember to follow safety precautions, select appropriate nozzles, and tailor your approach to different surfaces. With regular maintenance, your house will remain clean and attractive year-round.